#233D5D#233D5D

#233D5D is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.065 H 254.4°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#233D5D
RGB	rgb(35, 61, 93)
HSL	hsl(213, 45%, 25%)
HSV	hsv(213, 62%, 36%)
CMYK	cmyk(62.4%, 34.4%, 0%, 63.5%)
CIE-LAB	lab(25.21, 1.03, -22.06)
CIE-LCH	lch(25.21, 22.09, 272.66°)
OKLab	oklab(35.53% -0.0173 -0.0622)
OKLCH	oklch(35.53% 0.065 254.4)
XYZ	xyz(4.3370, 4.4848, 10.9909)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D5D #5D4323

analogous

#235A5D #233D5D #26235D

triadic

#233D5D #5D233D #3D5D23

tetradic

#233D5D #5D235A #5D4323 #235D26

square

#233D5D #5D235A #5D4323 #235D26

split-complementary

#233D5D #5D2623 #5A5D23

monochromatic

#080F16 #122031 #233D5D #345A89 #4477B6

Accessibility & contrast

On white

11.07

#233D5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#233D5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D5D

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D5D	#FFFFFF	#000000	##FFFFFF
##233D5D	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303F5E

Deuteranopia (green-blind)

#28395C

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233d5d;
/* rgb */ color: rgb(35, 61, 93);
/* oklch */ color: oklch(35.5% 0.065 254.4);

Tailwind

colors: {
  custom: {
    50: '#63728b',
    500: '#233d5d',
    950: '#000000',
  },
}

SCSS

$custom: #233d5d;
$custom-light: #63728b;
$custom-dark: #000000;

JSON

{
  "hex": "#233d5d",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 93
  },
  "hsl": {
    "h": 213.103,
    "s": 45.312,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35529,
    "c": 0.06462,
    "h": 254.4
  },
  "luminance": 0.04485
}

Semantic roles & 50–950 ramp

primary

#233D5D

secondary

#91724B

accent

#9B53D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #233D5D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →